Determine the number of bonding electrons and the number of nonbonding electrons in the structure of cs2.

Carbon disulfide (S=C=S) is made up of one carbon atom and two sulfur atom.

Carbon has 4 valence electrons while sulfur has 6 electrons.

During bonding all the four carbon valence electrons are used in bonding while each sulfur atom contributes two electrons two the bond formation.

Therefore; 4 + 2 (2) = 8 electrons are used for bonding, while 8 electrons (four from each sulfur atom) are not used for bond formation.